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Rainbow Electronics MAX8720 User Manual

Page 22

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MAX8720

Dynamically Adjustable 6-Bit VID
Step-Down Controller

22

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D0–D5 VOLTAGE

S0, S1 VOLTAGE

PGOOD

SUS

SKIP

MODE

FORCED-PWM

FORCED-PWM

PWM MODE

PWM MODE

S0, S1

D0–D5

D0–D5

TARGET

AUTOSKIP MODE

HIGH IMPEDANCE

HIGH IMPEDANCE

LOW THRESHOLD ONLY

V

OUT

SLEW RATE SET BY R

TIME

8x R

TIME

CLOCKS

8x R

TIME

CLOCKS

Figure 10. Suspend Transition in Forced-PWM Mode (SKIP = High)

D0–D5 VOLTAGE

S0, S1 VOLTAGE

PGOOD

SUS

SKIP

MODE

FORCED-PWM

FORCED-PWM

SKIP MODE

SKIP MODE

S0, S1

D0–D5

D0–D5

TARGET

AUTOSKIP MODE

HIGH IMPEDANCE

HIGH IMPEDANCE

LOW T'HOLD ONLY

LOW THRESHOLD ONLY

V

OUT

SLEW RATE SET BY R

TIME

8x R

TIME

CLOCKS

8x R

TIME

CLOCKS

LOW T'HOLD ONLY

Figure 11. Suspend Transition in Pulse-Skipping Mode (SKIP = GND)